![]() ![]() In this surgery, the maxilla can move in three dimensions to compensate for its deficiencies and to segment if it presents transversal deficiency. When the same patient has mandibular prognathism and maxillary hypoplasia, the indicated treatment is bimaxillary orthognathic surgery.Monomaxilar surgery, when the maxillofacial surgeon only acts on one of the two skeletal structures.Bimaxillary surgery, when the maxillofacial surgeon needs to intervene surgically on the mandibular and maxillary bone.For a class III skeletal malocclusion, orthognathic surgery is necessary:.For an overdeveloped chin (an apparent prognathism, but no class II maloclussion), the treatment consists of a mentoplasty or chin reduction surgery.For a class III that is only dental, the indicated treatment is orthodontics, although it is important to mention that a functional cross-bite preserved over time can become skeletal, hence the importance of early treatment.On the other hand, some patients may present with both malformations: mandibular prognathism and maxillary hypoplasia In these cases, the lower development of the upper jaw leads to a compensation mechanism in the lower jaw, so both bone structures must be corrected at the same time with bimaxillary orthognathic surgery. In most cases of pseudoprognathism, the maxilla is underdeveloped not only in the anteroposterior plane, but also presents deficiencies in the vertical or transverse plane, giving a sunken appearance to the middle third of the patient's face, and making the lower jaw stand out and seem very large, even if it actually has a normal size. In patients with cleft palate it is a congenital condition. In most cases it is a developmental anomaly, although it can also be caused by external factors, such as poorly planned dental extractions or missing teeth. Pseudoprognathism, maxillary hypoplasia, or false prognathism, is a bone malformation in which the upper jaw is underdeveloped. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |